MATLAB: Unsual gradient from gradient

gradientunusual put

Hello, when I try and calculate the gradient I receive slope = gradient (fx)

slope =
(7167*x^2)/25000 - (3523*x)/5000 + 6389/10000
>>  GRAD = vpa  (slope, 10)
GRAD =
0.28668*x^2 - 0.7046*x + 0.6389

Will someone advised me how to interpret this please? GS.

Best Answer

The vpa function converts the fractions to their decimal equivalents (decimal fractions).

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MATLAB: Gradient command producing multiple functions

The functions you obtain from the gradient function are the derivatives with respect to the vector of the used variables. See https://www.mathworks.com/help/symbolic/gradient.html .

MATLAB: Creating phase plot from initial data

Use the gradient function to create the derivatives.

See if this works with your data:

x = sin(0:0.5:2*pi*2);                          % Create Data

y = cos(0:0.5:2*pi*2);                          % Create Data
u = gradient(x);                                % Calculate ‘x’ Derivative
v = gradient(y);                                % Calculate ‘y’ Derivative
figure(1)
quiver(x, y, u, v)
grid
axis equal

Best Answer

Related Solutions

MATLAB: Gradient command producing multiple functions

MATLAB: Creating phase plot from initial data

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